Which expression is equivalent to: 3^2 x 3/ 3^4

Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?

What is the 12th term of b(n)=-4-2(n-1)

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?